SETORIGIN
Syntax SETORIGIN [xvalue yvalue] 
SETORIGIN xyvalue
(SETORIGIN)

 
Explanation The SETORIGIN command allows the coordinate system origin point to be set for active turtles. Normally, the coordinate system origin (location [0 0]) is in the center of the window. This origin may be changed for all turtles or individually for any turtle. The input for SETORIGIN is a list of two integers, an X value and a Y value. The coordinates are always relative to the standard turtle coordinate system, where [0 0] is the center of the window.

It is possible to set the origin for both the X and Y coordinates by supplying this value as a single input. (SETORIGIN) resets the origin to the center of the window.

Each turtle, control, or bitmap can have its own origin on the screen.

See also ORIGIN, SETEXTENT and EXTENT.
 

Examples ASK 0 [SETXY [-25 0] SETORIGIN POS] 
ASK 1 [SETXY [25 0] SETORIGIN POS] 
TELL [0 1] 
FD 50 RT 135 FD 36 
HOME 

TopIndex